text: /*=============================================================================
      Copyright (c) 2001-2006 Joel de Guzman
  
      Distributed under the Boost Software License, Version 1.0. (See accompanying 
      file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  ==============================================================================*/
  #include <boost/detail/lightweight_test.hpp>
  #include <boost/fusion/container/map/map.hpp>
  #include <boost/fusion/container/generation/make_map.hpp>
  #include <boost/fusion/sequence/intrinsic/at_key.hpp>
  #include <boost/fusion/sequence/intrinsic/value_at_key.hpp>
  #include <boost/fusion/sequence/intrinsic/has_key.hpp>
  #include <boost/fusion/sequence/intrinsic/begin.hpp>
  #include <boost/fusion/sequence/io/out.hpp>
  #include <boost/fusion/iterator/key_of.hpp>
  #include <boost/fusion/iterator/deref_data.hpp>
  #include <boost/fusion/iterator/value_of_data.hpp>
  #include <boost/fusion/iterator/next.hpp>
  #include <boost/fusion/support/pair.hpp>
  #include <boost/fusion/support/category_of.hpp>
  #include <boost/static_assert.hpp>
  #include <boost/mpl/assert.hpp>
  #include <iostream>
  #include <string>
  
  int
  main()
  {
      using namespace boost::fusion;
      using namespace boost;
      using namespace std;
      using boost::fusion::pair;
      using boost::fusion::make_pair;
  
      std::cout << tuple_open('[');
      std::cout << tuple_close(']');
      std::cout << tuple_delimiter(", ");
  
      {
          typedef map<
              pair<int, char>
            , pair<double, std::string> > 
          map_type;
  
          BOOST_MPL_ASSERT((traits::is_associative<map_type>));
          
          map_type m(
              make_pair<int>('X')
            , make_pair<double>("Men"));
          
          std::cout << at_key<int>(m) << std::endl;
          std::cout << at_key<double>(m) << std::endl;
          
          BOOST_TEST(at_key<int>(m) == 'X');
          BOOST_TEST(at_key<double>(m) == "Men");
  
          BOOST_STATIC_ASSERT((
              boost::is_same<result_of::value_at_key<map_type, int>::type, char>::value));
          BOOST_STATIC_ASSERT((
              boost::is_same<result_of::value_at_key<map_type, double>::type, std::string>::value));
          
          std::cout << m << std::endl;
  
          BOOST_STATIC_ASSERT((result_of::has_key<map_type, int>::value));
          BOOST_STATIC_ASSERT((result_of::has_key<map_type, double>::value));
          BOOST_STATIC_ASSERT((!result_of::has_key<map_type, std::string>::value));
  
          std::cout << deref_data(begin(m)) << std::endl;
          std::cout << deref_data(next(begin(m))) << std::endl;
  
          BOOST_TEST(deref_data(begin(m)) == 'X');
          BOOST_TEST(deref_data(next(begin(m))) == "Men");
  
          BOOST_STATIC_ASSERT((is_same<result_of::key_of<result_of::begin<map_type>::type>::type, int>::value));
          BOOST_STATIC_ASSERT((is_same<result_of::key_of<result_of::next<result_of::begin<map_type>::type>::type>::type, double>::value));
          BOOST_STATIC_ASSERT((is_same<result_of::value_of_data<result_of::begin<map_type>::type>::type, char>::value));
          BOOST_STATIC_ASSERT((is_same<result_of::value_of_data<result_of::next<result_of::begin<map_type>::type>::type>::type, std::string>::value));
      }
      
      {
          std::cout << make_map<char, int>('X', 123) << std::endl;
          BOOST_TEST(at_key<char>(make_map<char, int>('X', 123)) == 'X');
          BOOST_TEST(at_key<int>(make_map<char, int>('X', 123)) == 123);
      }
  
      return boost::report_errors();
  }
  
  